What can I do for lightheadedness, dizziness and no balance along with chest pains which sometimes are both sides as well as sharp pains on left side?

Check blood pressure. Get your blood pressure checked sitting and standing. You might have ortho static hypotension. The chest pains do not sound cardiac. See a physician.
See your doctor. These symptoms represent a plethora of diagnostic possibilities, from inconsequential to more serious. The only proper way to evaluate these symptom is to follow up with your physician so they can perform the proper diagnostic tests.